20824Maximum Target Displacement Ductility Demand

The engineers are encouraged to limit displacement ductility demands, defined as mD = AD/AY to the values shown in Table 20.12.

TABLE 20.12 Caltrans Limiting Displacement Ductility Demand Values [35]

Item

Limiting mD = AD/AY

Single column bents supported on fixed foundations Multicolumn bents supported on fixed or pinned footings Pier walls (weak direction) supported on fixed or pinned footings Pier walls (strong direction) supported on fixed or pinned footings

0 0

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